Many philosophies attempt to find the truth somewhere beyond phenomena, or postulate some fundamental existence that rests beneath all phenomena.
In the Lotus school of Buddhism teaches us that the universal self or truth exist in the depths of our lives, within this phenomenal world and the entire universe.
This ultilmate truth or the"the true entity" (jisso) of "all phenomena" (shoho) does not, however, mean that the true entity is contained within all phenomena or vice versa, nor does it assume the existence of some being that exists beyond all universal phenomena and governs them. The true entity of all phenomena" is a philosophy that sees all universal phenomena as manifestations of Mystic Law. Western philosophers and other non-Buddhist thinkers and systems of thought have long sought some truth or essence either beyond or behind phenomena. The Christian idea of an absolute God as the creator of the world is a good example of how these other philosophies removed the ultimate truth from all real phenomena. The inevitable result was a split between God and man or between Creator and creature. Churches and priests took over as the "authorized" intermediaries between the two, and they grew so powerful that the people were treated like vassals.
Moreover, In Pre-Lotus sutra teachings taught this universal self or the ultimate reality regarded as a " personality ". In other words the ultimate truth comes from a unique existence apart from the phenomenal world, that is to say, all living entities and even and the universe itself are the outcome of God's grace, will and omnipotence and that the entire universe including heaven and earth derives from one Ultimate truth which governs all existence like.On the other hand, the lotus sutra regards the reality as a " Law "(Dharma) which underlies all phenomena in our lives and the entire universe.In NIcheren Buddhism we call this Mystic LAw . It reveals that the universal truth pervades the entire universe and is ONE with all phenomena. According to this sutra, the Ultimate truth is not confined to a unique existence, and therefore, the universe does not begin with the one truth, nor is it governed by the one truth, the truth is ubiquitous in all existence in the universe. For instance, the Lotus sutra expounds that even mountains, rivers, grasses, and trees not to mention human beings have the Buddha nature or posseses the supreme jewels in life of the Buddha.The word "Buddha" is an honorific title meaning "enlightened one" and is bestowed upon a person who has perfectly fused his subjective wisdom with the objective reality of life. A Buddha perceives that all phenomena ultimately are the expression of one mystic entity or law permeating all existence and that this mystic law is one with the Buddha's life itself. A Buddha's life manifests boundless joy, vitality and good fortune in each moment.The teachings of a Buddha are called the Dharma or Law because his enlightened words reveal his wisdom which is one with the essence of all life and nature. Buddhism is the teaching which enables common mortals to fuse their minds with that of the Buddha and experience the hidden treasure of wisdom and virtue within their own existences as well. In the eye of the Buddha, all beings(i.e, Humans)and the lands in which they live manifest the life of Buddha.
To return,Buddhism is totally different. The Buddhist finds truth in reality itself; he discovers the underlying truth by steadily and carefully observing man and the things around him. "The true entity of all phenomena" is, therefore, a philosophy that sees into the real aspect of every reality in the universe, especially human life. All phenomena and the true entity are "two but not two," for one cannot exist without the other. This is what binds the true entity and all phenomena together, making them one and the same, even though they may seem to be different. All phenomena --- the sun and the moon as they rise and set, the ebb and flow of the seas, the bending of trees before the wind --- in the eye of Buddhism all appear as the action of Mystic Law. Unlike the Lotus Sutra, which gives careful, deep treatment of this principle, all the other sutras deal solely with the phenomena themselves and point out only differences among them. The Lotus Sutra sees beyond the superficial differences and discovers the Mystic Law equally permeating the depths of all. This is what sets the "perfect and all-embracing Lotus Sutra" above the "provisional teachings of discrimination." The principle of equality meant by "the true entity of all phenomena" is an expression of the Buddha's great and impartial wisdom, which recognizes the potential for Buddhahood in all people alike. Nonetheless, the first half of the Lotus Sutra (theoretical teaching) only explains this theoretically, while the second half (essential teaching) gives practical meaning to the theory.
Take for instance Newton's law of gravitation. It is a law of physics and, even if it is not directly parallel to this Buddhist principle, we know that it operates throughout the universe. Regardless of who discovered it or whether it was "discovered" at all, the law of gravitation has always existed, and all things move according to it. To the eye of physics, the movement of the sun, moon, and stars, the changes in the tides, an apple falling from a tree --- all these are understood in terms of the law of physics. Without understanding gravity, people merely see an apple ripening and falling to the earth, yet a physicist recognizes the law behind this phenomenon, that gravity is working between two objects, the earth and the apple. This law keeps on working whether one is aware of it or not, but he cannot apply it to anything if he cannot first identify and analyze it. Then again, to know about gravity and not do anything with that knowledge may be a serious waste. Only when we translate this knowledge into some practical use by creating an airplane, spaceship or something else of value to man, can we enjoy the benefits of the knowledge we have gained from the law of gravity.
In Buddhism, the true entity of all the movements of the universe is Mystic Law. Common mortals see nothing but the trees waving in the wind, yet the Buddha sees the mystic rhythm of Mystic Law pulsing within. To him the sun's radiance is the harmonious manifestation of the Mystic Law that fosters all kinds of life on earth. Every aspect of our life is made up according to the Mystic Law, and we always act in rhythm with it. Merely to realize this fact is, however, still a theoretical understanding. Anyone who does not know how to bring his life into oneness with the Mystic Law would be like someone falling in an attempt to fly, ignorant of the law of gravitation. He would fall into one suffering and then another, only getting more and more deeply confused.