Your chakras can be tested by a pendulum they should all be swinging in the same direction. If a chakra is out of sync then that is the chakra you should be working on healing. This is as you guessed a balancing of the energy.

The chakras are our power centers, think of the power plant that supplies energy to your house. That power doesn't come direct or your house would blow up! It has to be cut down and distributed through many distribution centers. These centers tell the energy where to go and how much to give to where it needs to go.

The elements now you are more drawn to water and earth than fire and air. You are more drawn to the yin energies than the yang energies. This makes sense as you seem to be laid back in your approach towards life. Fire and air are more active aggressive as water and earth are more subdued and passive energies.

The Merkabah is something I never really got into a lot but I can explain what I did get into. There is a Star Tetrahedron of energy the top spins in one direction while the lower part spins in the opposite direction. Supposedly when you fully activate this you can astral project to other planets inside this aura-ship. There is another even more complex called the Vortexijah.

Finely seeing all that goes on on earth as superficial is an awareness, I remember reading from it was either "In The Land Of The Living and The Dead" or "Thirty Years Among The Dead" that when someone died and went to visit relatives they were gossiping about this person and that person and when she or he heard this (That used to be a big interest to him/her) it did not seem interesting but so much more trivial and wasted time spent.