I am not sure if there is such a term call holistic investing. I believe such a concept is not new, but can't remember the actual term. Anyway:
When we talk about investing, many would think about stock selection, diversification, asset allocation etc. I think to be even more holistic, one should look at the profile of oneself too.
for example, if I hold a stable job, and I know I can set aside money every month or year for investment. My approach will be different from that someone that has a fix amount of money, or that we know our future income is going to drop or be volatile.
For me, I would not touch my CPF money for investment unless we are in a ultra bear market( more than 50% drop), those money will be like bond investment and is suit for the purpose of accumulation of fund for retirement. So I will not invest in bonds for the same of diversifying.
given the stability of my job, I dun need a very hugh war best, as my income for investment will increase every year. This is not to say we should be trigger happy, but perhaps I don't need a warchest as big as perhaps 50% of my investment income.
also, I have already have my insurance needs covered for me and my family, so I can invest with a peace of mind