My opinion is that language has no importance, but intention or feeling has. If you count "One, two, three" or "Uno, dos, tres" or "Um, dois três" it's all the same thing. You know that you are counting upwards.
If you think of a mantra in spanish, english, a mixture of polish and elfic language... it doesn't matter, as long as you know what you are saying or as along as you "feel" what you want to do.