All living things produce dmt. We (humans) produce it in small quantities during REM sleep (dreams), and is massive quantities when we are meditating, in a trance, or near death. It is perfectly safe and non-addictive.
A star is a luminous ball of plasma held together by its own gravity and produce energy through thermonuclear fusion. A planet is a body orbiting a star massive enough to be rounded by its own gravity but not massive enough to conduct fusion.