Wonderful to read everyone's posts. I've found these two definitions which might be helpful:
There are probably more (grass-root) pantheists than Protestants, or theists in general, and pantheism continues to be the traditional religious alternative to theism for those who reject the classical theistic notion of God. Not only is pantheism not antithetical to religion, but certain religions are better understood as pantheistic rather than theistic when their doctrines are examined. Philosophical Taoism is the most pantheistic, but Advaita Vedanta, certain forms of Buddhism and some mystical strands in monotheistic traditions are also pantheistic. But even apart from any religious tradition many people profess pantheistic beliefs-though somewhat obscurely.
From the main Pantheist site:
Panentheists and pantheists share the view that the universe and every natural thing in it is in some sense numinous.
However, pan-en-theos means "all-in-God" - that is, the universe is contained within God, not God in the universe. Panentheists believe in a God who is present in everything but also extends beyond the universe. In other words, God is greater than the universe. Often they also believe that this God has a mind, created the universe, and cares about each of us personally.
Pantheists believe that the universe itself is the prime focus for reverence. They do not believe in personal or creator gods.