Differences in planes are not differences in time and space but differences of rates of vibrations. One plane is formed from another in the same region, called akasha or accommodation, by change of rate of vibration. Consequently all planes may be regarded as all spaces. God, being the source of formation and the essence of energy, is therefore in all times and all spaces and places and can be found by a change in pitch, by a tuning of the soul.
So long as soul is regarded as something different than material, something different from mental existence, one finds differences not soul. Since God is to be found in the mental and material, God is therefore the nearest thing. Really it is God Who is searching for God, and we are the very thing we are looking for, only in our ignorance we do not know this.