.... the only problem with the idea of some form of intelligence behind creation for me is the total lack of evidence to support this idea and the absence of any need for this in evolutionary terms. Again, with the idea that there is life after death, although one cannot dismiss it in absolute terms, there is no substantive evidence to back this up, and consequentially it remains a matter of conjecture only.
I must admit amazement at anyone who can claim a total lack of evidence for the idea of intelligence behind creation.
I assume you are putting all your faith behind the capacity for the random, unguided, purposeless forces of nature, which are demonstrably destructive rather than creative, to have brought into existence the unfathomable complexity of the human mind.
Those who put their faith in the power of the theory of evolution must make many presumptions - such as to assume that every one of the countless billions of beneficial mutations needed to bring our lives into existence were generated by random events and that each one had sufficient benefit in its own right to be passed on through natural selection.
Of course you will not find evidence for life after death if you restrict it to human scientific investigation of our material universe - this is not our true home. The divine revelations of scripture indicate that our souls are not of this material universe, but there is plenty of evidence that souls which have passed on to their heavenly state have the power to intercede in the form of miracles performed in their name.
from wiki:
Beatification is a recognition accorded by the Catholic Church of a deceased person's entrance into Heaven and capacity to intercede on behalf of individuals who pray in their name.
At least two such miracles need to be formally verified for a deceased person to be declared a saint - and there are many such declared saints. There are also many personal witnesses to such miracles which have not been processed through the formal verification procedure, but which still stand as evidence.
And there is the historical evidence for the Resurrection which many have tried and failed to dismiss.