Why is meditation so difficult?

[jafar]

Why is meditation so difficult? And why can't souls learn to meditate in the astral planes? Can they learn to meditate in the astral planes?

Meditation is not an act it's a 'state', to be 'meditative'.

Usually by 'difficult', people actually refer to it's difficult to silence the mind.
Yes it's difficult because by it's nature the mind will not stop, it went into an endless loop throughout it's lifetime. Like a looping stored procedures in the computer.

To 'stop' the mind, it need to be given a task.
That's the reason why many recommend to focus the attention to the breath.

Many others recommend to start recognizing the mind as it is (noisy, never stop) but start to dis-identify yourself from it, by for example thinking "Who is this bastard (or b****) that keeps on talking inside me when I've told him/her to shut up!". A dis-identifying process when performed, is already a progress in spiritual sense.
Sadhguru describe this as "Making a slight distance between you and yourself".

Another way is to count the words that appear inside your head.
By merely an intention of "I'm counting the words inside my head".
Maximum you will get 8 words, because after that.. silence... the mind is then busy waiting for the words that actually coming from itself.

And yes becoming meditative is possible in any planes, including astral planes..