Also consider, as you will see in this
Encyclopedia Britannica article, that some Buddhists
do believe in an
Ultimate Buddha, or "first, self-existing Buddha, from whom are said to have evolved the five Dhyani-Buddhas." In this Cosmology, there is most certainly an "ultimate being," but it is accepted that all
description or attempt to
characterize such a (state of) being is useless ... and therefore
Silence is the best description of all.
The Dalai Lama is
extremely familiar with the esoteric Buddhist teachings which date back to
Shakyamuni and before, as well as Vajrayana, in which the above
Dhyani-Buddhas (and their parent,
Adi-Buddha) figure prominently. The beauty of HHDL, imo, is that he is able to speak simply yet profoundly, being at once
full of Joy & laughter ... while also knowing interiorly a Wisdom that most of us will probably be developing for lifetimes. In this sense, I don't find it at all unlikely that
he knows a good deal about this "G-d person" (
vide Douglas Adams, HHGttG) ... but I also think he is happy to use the word
God because of his ecumenical approach and
non-bias toward other faiths/traditions.
Peace,
andrew