You do not need to understand all the lines in order to get this Helium joke. I didn’t get all the lines when I first saw it either, hehe. I did some research and I’d love to explain each line here ;)
He is everywhere. In the Heaven and Earth- Helium is the second most abundant element in the universe, being present at about 24% total elemental mass. On earth it is present but rarer: 5.5 ppm by volume in the atmosphere, created by radioactive decay and heavy elements
He makes the stars shine, yet He cannot be seen- stars are usually powered by nuclear fusion in the core which converts Hydrogen into Helium. This reaction releases enormous energy in the form of gamma rays. The photons of the gamma rays bounce each other in the core portion of the star, which lose some energy. When the rays arrive at the surface and get into the space, the photons have lost much energy and therefore become visible light shooting into the space and maybe received by our eyes. That is why we can see stars shine. We can not see helium because it is a colorless, odorless, tasteless, non- toxic, inert noble gas on earth.
He is noble, abundant and fills the universe- already discussed above. FYI: Helium is a noble gas, which means it is in group 18 of the periodic table and very unreactive because its outmost electron shell is fully occupied.
He can lift you into the sky, and bring you gently down- Helium gas is lighter than the atmosphere, so it tends to go upward and has a lifting force of 1gram per liter gas if it is trapped in a balloon. Helium balloons are very common. So it is possible to lift a person up using sufficient amount of helium balloons. When gas slowlu leaks out of the balloon, you can gradually get back to the ground.
He can take many forms- Helium can be liquid at temperature close to zero, solid at 0.95 k and 25 ATM or room temperature with 114 thousand atm (very very great pressure, over 100 times greater than the pressure at the ocean’s deepest point.) Gas at room temperature and pressure, and plasma at the core of the stars. He can help heal. He can help kill- helium mixed with oxygen helps chronic obstructive pulmonary disease patients breathe easier, because ur is a less dense gas that allows patients with COPD to empty their lungs better when breathing out. However, if you breathe only helium, it cut off oxygen supply needed by your cells. A man once attempted suicide by connected himself to a helium tank. He was found unconscious but recovered after a several weeks in the Emergency room. He can help create. He can help destroy- Helium can fuse to create large atoms such as oxygen and carbon in the core of the stars. However, such nuclear fusion can destroy surrounding matters by converting them to all energy. Praise Helium ;) Pic credit to: https://m.imgur.com/r/funny/HD8j6ID