So we started to look for the meaning of life?
Here is a good start: The Heart Sutra
摩訶般若波羅蜜多心経
観自在菩薩行深般若波羅蜜多時、照見五蘊皆空、度一切苦厄。舎利子。色不異空、空不異色、色即是空、空即是色。受・想・行・識亦復如是。舎利子。是諸法空相、不生不滅、不垢不浄、不増不減。是故空中、無色、無受・想・行・識、無眼・耳・鼻・舌・身・意、無色・声・香・味・触・法。無眼界、乃至、無意識界。無無明、亦無無明尽、乃至、無老死、亦無老死尽。無苦・集・滅・道。無智亦無得。以無所得故、菩提薩埵、依般若波羅蜜多故、心無罣礙、無罣礙故、無有恐怖、遠離一切顛倒夢想、究竟涅槃。三世諸仏、依般若波羅蜜多故、得阿耨多羅三藐三菩提。故知、般若波羅蜜多、是大神呪、是大明呪、是無上呪、是無等等呪、能除一切苦、真実不虚。故説、般若波羅蜜多呪。
即説呪曰、羯諦羯諦波羅羯諦波羅僧羯諦菩提薩婆訶。般若心経
Thus have I once heard:
The Blessed One was staying in Rajagrha at Vulture Peak along with a great community of monks and great community of bodhisattvas, and at that time, the Blessed One fully entered the meditative concentration on the varieties of phenomena called the Appearance of the Profound. At that very time as well, holy Avalokitsevara, the bodhisattva, the great being, beheld the practice itself of the profound perfection of wisdom, and he even saw the five aggregates as empty of inherent nature. Thereupon, through the Buddha's inspiration, the venerable Sariputra spoke to holy Avalokitsevara, the bodhisattva, the great being, and said, "Any noble son who wishes to engage in the practice of the profound perfection of wisdom should train in what way?"
When this had been said, holy Avalokitsevara, the bodhisattva, the great being, spoke to venerable Sariputra and said, "Sariputra, any noble sons or daughters who wish to practice the perfection of wisdom should see this way: they should see insightfully, correctly, and repeatedly that even the five aggregates are empty of inherent nature. Form is empty, emptiness is form, Emptiness is not other than form, form is also not other than emptiness. Likewise, sensation, discrimination, conditioning, and awareness are empty. In this way, Sariputra, all things are emptiness; they are without defining characteristics; they are not born, they do not cease, they are not defiled, they are not undefiled. They have no increase, they have no decrease.
"Therefore, Sariputra, in emptiness there is no form, no sensation, no discrimination, no conditioning, and no awareness. There is no eye, no ear, no nose, no tongue, no body, no mind. There is no form, no sound, no smell, no taste, no texture, no phenomenon. There is no eye-element and so on up to no mind-element and also up to no element of mental awareness. There is no ignorance and no elimination of ignorance and so on up to no aging and death and no elimination of aging and death. Likewise, there is no suffering, origin, cessation, or path; there is no wisdom, no attainment, and even no non-attainment.
"Therefore, Sariputra, since the bodhisattvas have no obtainments, they abide relying on the perfection of wisdom. Having no defilements in their minds, they have no fear, and passing completely beyond error, they reach nirvana. Likewise, all the Buddhas abiding in the three times clearly and completely awaken to unexcelled, authentic, and complete awakening in dependence upon the perfection of wisdom.
"Therefore, one should know that the mantra of the perfection of wisdom - the mantra of great knowledge, the precious mantra, the unexcelled mantra, the mantra equal to the unequalled, the mantra that quells all suffering - is true because it is not deceptive. The mantra of the perfection of wisdom is proclaimed:
tadyatha - gate gate paragate parasamgate bodhi svaha!
Sariputra, a bodhisattva, a great being, should train in the profound perfection of wisdom in that way."
Thereupon, the Blessed One arose for that meditative concentration, and he commended holy Avalokitsevara, the bodhisattva, the great being. "Excellent!" he said. "Excellent! Excellent! Noble child, it is just so. Noble child, it is just so. One should practice the profound perfection of wisdom in the manner that you have revealed - the Tathagatas rejoice!" This is what the Blessed One said.
Thereupon, the venerable Sariputra, the holy Avalokitsevara, the bodhisattva, the great being, and that entire assembly along with the world of gods, humans, asuras, and gandharvas, all rejoiced and highly praised what the Blessed One had said.