It is not upstairs or somewhere far away. Heaven is in our consciousness. But it is the divine consciousness that connects earth with Heaven. The ordinary human consciousness will only connect us with something very, very limited and, at the same time, very fleeting.
For a second, we will be able to focus our consciousness on another person, and then our concentration disappears. But when we deal with the inner consciousness, which is the boundless, illumined, transformed consciousness, then our focus of concentration can go on, go on, go on.
Human consciousness is made up primarily of limitation, imperfection, bondage and ignorance. This consciousness wants to remain here on earth. It gets joy in the finite: in family, in society, in earthly affairs. Divine consciousness is made up of peace, bliss, divine Power and so forth. Its nature is to expand constantly. Human consciousness feels there is nothing more important than earthly pleasure.
Human consciousness tries to make us feel that God is somewhere else, millions of miles away from us. But divine consciousness makes us feel that God is right here, inside each life-breath, inside each heartbeat, inside everyone and everything around us.