Energy into matter

Science and mythologies: The Latin phrase "creatio ex nihilo" means "creation out of nothing," and it's largely the domain of theology, philosophy and mythology* for a reason.
The first law of thermodynamics, which is actually a conservation of energy equation, is that energy can neither be created nor destroyed. (http://science.howstuffworks.com/)

Vedic hymns: Rig Vedic hymns (of Indus valley civilization* period) are less dogmatic, more a kind of postulate or theories when they talk about matter or life related aspects, while they are thousands of year old in time.
One of the hymn illustrated here in adjoining picture-page is from 'Sukla-Yajur-veda', which says: "All the measures of time have been born from 'illustrious phenomena' (Sanskrit विद्युत, विद्युतः / electric, electricity, electrical). None can comprehend that above, across or in the middle."

Matter: Matter takes up space, has mass and composes most of the visible universe around you.

Energy: Energy takes multiple forms and is essentially the force that causes things to happen in the universe.
Energy can neither be created nor destroyed as per the first law of thermodynamics, which is actually a conservation of energy equation.

Matter and energy interchangeable: Albert Einstein theorized that matter and energy are interchangeable. Both matter and energy are variations of the same thing. Each can convert into the other. As per Einstein and the first law of thermodynamics, a fixed quantity of energy and matter exist in the universe.

pic credit:http://science.howstuffworks.com/

Annihilation: When two protons collide in the Large Hadron Collider, they may break apart into subatomic particles called quarks and a mitigating particle force called a gluon. Even when matter and antimatter annihilate each other, they produce energy, in the form of photons, which are quantum units of light.

Manufacturing matter: In the lab, creating matter entails a reaction called pair production, so called because it converts a photon into a pair of particles: one matter, one antimatter (the reverse of the matter-antimatter annihilation).

We can turn light into subatomic particles: Brookhaven National Lab, the European Organization for Nuclear Research (CERN) and Fermilab have all generated this reaction by firing a photon into a heavy atomic nucleus. The nucleus shares the energy and allows the photon to disintegrate into an electron and a positron, the antimatter opposite of an electron. The positron inevitably turns back into a photon when it collides with an electron.(credit:http://science.howstuffworks.com/environmental/earth/geophysics/can-we-manufacture-matter.htm) 
* blog post of the author