Both science and spirituality search for the truth, but use completely different tools and interpret their results on completely different grounds. As Albert Einstein (1940)said "Science without faith is lame, religion without science is blind." So, science (objectivity) and spirituality (subjectivity) are complementary to each other and we need both.

Science models empirical data: derives a model (hypothesis, theory) which
describes measurements and, if the model describes the data accurately, reliably and repeatedly, it is eventually accepted to be a (natural) law. If new measurements deviate from the current knowledge, the laws are changed/widened in order to correspond also to new measurements. Science limits itself with objective principles and admits only the rational mind, which is limited with symbolic representation. Science is interested in HOW the nature operates and is not concerned in WHY the universe exists and what is the purpose of life. Many scientists assume that the universe and the life appeared by chance and that there is no deeper purpose of existence.

On the other hand, spirituality is mainly concerned with the purpose of life. In all traditions, spiritual movements and all religions, from the east and the west, we can find the same basic issues:

² the purpose of life goes beyond the materialistic world;

² everything that exists is one, originates from the same source and serves the same purpose;

² the truth is undescribable and unreachable to logical mind, it is necessary that everyone tries to feel it by him or herself by subjective experience;

² the purpose of life is learning, the goal is to overcome the limitations of ego, to subjectively recognize the truth and to attain the wisdom;

² spiritual life is based on cultivation of spiritual virtues, such as unconditional love, compassion, faith, humility, patience, tolerance, simplicity, spontaneity, modesty, courage, sincerity, forgiveness etc.

Spirituality is necessarily subjective and uses intuitive mind, inner sense - heart.

Philosophy uses both science and spirituality, objective and subjective experience, in order to achieve the balance and harmony between rational and intuitive mind, between head and heart. True philosophy deals
with both questions, how the universe operates and why universe exists and what is the purpose of life. As Dalai Lama has stated: “We need education and the sense of moral ethics - these two have to go together.”

Although consciousness is often related to intelligence it has a deeper meaning and purpose; it is necessarily connected with ethics of life. Intelligence without heart is unconscious intelligence, able to demolish and destroy the environment