A Ramana Maharshi quote from yoga Vasistha Maha ramayana
What actually exists is only ‘ātma-svarūpa’ [our own essential self]. The world, soul and God are ‘kalpanaigaḷ’ [imaginations, fabrications, mental creations or illusory superimpositions] in it, like [the imaginary] silver [seen] in a shell. These three appear simultaneously and disappear simultaneously. ‘Svarūpa’ [our ‘own form’ or actual self] alone is the world; ‘svarūpa’ alone is ‘I’ [our ego, soul or individual self]; ‘svarūpa’ alone is God; everything is ‘śiva-svarūpa’ [our actual self, which is ‘śiva’, the absolute and only truly existing reality].
(‘Who Am I?’, Paragraph 7)
It is to be experienced. Not understood silly.
Once you realize it, according to Yogananda, the world becomes like putty. You can change it any way you like.
Those giants are far and few. The people who reveal these things are not the giants. He and a few others – reached there saw it and came back to us with this great thing. They know the way there. They are the only people who can take us there