Second step:

Earth and the heavens are like two countries under one government that conduct important relations and transactions. For example. Earth needs the light heat blessings and forms of mercy (like rain) sent from the heavens. Also as all Revealed religions confirm and as all saintly scholars who unveil creation's secret truths based on what they have witnessed agree angels and spirit beings descend to Earth. Thus we may deduce that Earth's inhabitants can ascend to the heavens.

People can travel to the heavens through their mind vision and imagination. Freed from or purified of their carnal and material being's gross heaviness the spirits of Prophets and saints travel in such realms; the spirits of ordinary people do so after death. Since those who are "lightened" and have acquired "subtlety" and spiritual refinement travel there certain inhabitants of Earth and the air may go to the heavens if they are clothed in an "ideal" body. energetic envelope or immaterial body or form and are light and subtle like spirits.