...pantheistic belief arises when the things of this world excite a particular sort of religious reaction in us. We feel, perhaps, a deep
reverence for and
sense of identity with the world in which we find ourselves. Epistemically it seems to us that God is not distant but can be encountered directly in what we experience around us. We see God in everything. The initial focus of attention here may be either our physical environment (the land on which we live, our natural environment) or else our social environment (our community, our tribe, our nation or, generally, the people we meet with) but further reflection may lead to its more universal expansion.
In the second kind of argument, reasoning starts from a relatively abstract concept whose application is taken as assured, but further reflection leads to the conclusion that its scope must be extended to include the whole of reality. Most typically, the concept in question is that of God, or perfect being, in which case pantheism appears as the logical terminus or completion of theism...
Pantheism (Stanford Encyclopedia of Philosophy)