Are there Christians who mix their beliefs with other religions: Buddhism, Gnosticism

Are there Christians who mix their beliefs with other religions: Buddhism, Gnosticism, Paganism, etc.?

it is forbidden in Christianity to "serve two masters," as the bible says.

So far in my experience, I haven't seen Buddha and Jesus being similar - but they might take off similar values from each other, which their are likely very few to none

If you are really a Christian then you would not mixed any other religion, because there is only one God, and you cannot serve God and anyone/thing else.

Yes such people *do* exist.

Your first two examples present no major religious conflict with Christianity: Buddhism is a non-theist spirituality and many Gnostics are Christian Gnostics.

There are some "Christo-Pagans" and while we may wonder how they resolve the conflicts inherent in that label, they're as entitled to their beliefs as anyone else. After all, the bible does *not* say that other gods don't exist, just that believers of the book must put its god *before* all others.

Yes, I do. I've been told I'm a Christian Mystic (closely akin to the Essenes) and I'm also a Hedge Witch. I don't have trouble identifying Deity as all roads to my mind, lead to the One...the All...the I AM