(This is long. I'm sorry, but there were two questions, and both had multiple meanings. Please bear with me while I explain...)
We can sit zazen together or circumambulate a favored stupa with others, or even believe (despite what the Diamond sutra says) that we are guiding others to Nirvana with our practice. But in truth (*and* in the sutras) the practices are of an inner nature, and personal. The focus is intensely personal because it is the practitioner's own karma that is being developed in order to literally compel them to an experience beyond even the idea of a "beyond". Very personal, yes, I think so.
But wait! After writing that, I did a double-take on the question and now I'm wondering if maybe you meant "alone" when you used the word "personally". If so, that's not too good. It's much better to have a "sangha", a group to associate with. In fact to "convert" for most Buddhists means to formally declare taking refuge in the Three Jewels; The Buddha, the Dharma, and the Sangha. The first two you can do alone, but not the third.
The other half of your question also gave me a double take.
On one hand, you may mean, can you be both Catholic and Buddhist? But on the other hand, you may have been asking about the expected fall-out that could occur, if a family member "converts to Buddhism", when the rest of the family all venerate the Pope like a devout Tibetan Buddhist venerates the Dalai Lama.
Not knowing your family, I can't say how they'd react...or their friends...or their Priest.
But I can say with certainty, NO you cannot convert to Buddhism AND be a Catholic at the same time. You can study it. You can use the practices. But the word "convert" carries with it a much deeper commitment to the Three Jewels. A commitment that will pull you in a direction that will be, if not at odds with, certainly not parallel to, Catholicism.
There is a relevant Christian admonition that "no one can serve two Masters". But that was in reference to a bad choice as "the other"...the Devil vs. Christ I believe.
In this case, I don't think it's a choice between "good" and "bad". It's more like what Michael Nesmith said in a song....
"You can't try and walk
down two different roads
and look to both of them
to bring you home."
I'll also cite Joseph Campbell who, in his television conversations with Bill Moyers many years ago, said that to get the full effect of a spiritual path you must commit your life to a single one. He even expressed some regret that because of his vocation (comparative religion studies), he wasn't able to do just that...focus on a single path and take it "all the way", as it were. I also remember Houston Smith saying something quite similar.
(Again, sorry for the length of response. Hope at least a bit of it was worth wading through.)
Comments
Excellent answer.
by DavidHume on February 5th, 2007
Thatnks to you also. I find that the quest for meaning in life should be a compelling one
by Biggie15 on February 5th, 2007
You won't get any argument from me! :-)
by Stableboy on February 5th, 2007
My grandmother had both Buddhas and Bibles. And I was always under the impression that many Buddhists already have multiple belief systems; Shinto/Taoism with a touch of Zen for instance.
by 8 Jan 2004-10 Dec 2009 on March 16th, 2007
Yes, the core insights and practices of Buddhism are easily "grafted" onto other religions, because they don't make any metaphysical claims which might be in conflict with existing beliefs. I don't do that (just straight Zen), but some do.
by Stableboy on March 16th, 2007
Buddhism is a well fashioned, enduring boat. You choose what river you wish to ride it on.
by Metaphiz on April 24th, 2007
Great answer. +6
by xhepera on June 21st, 2009
Just working your way through the Buddhism category today? :)
by HasntBeen on June 22nd, 2009