Interpretation will be shaped according to which planet the ruler of the chart is and where the ruler of the south node is. And yes, having another planet in the 8th house will intensify the effect of that house because planets give event and houses are the area where the event takes place.
In general, when the chart ruler planet conjuncts the south node in the 8th house, one can be born as one who is prone to occultism and spirituality. There is no doubt about it. In addition, he/she may have grown up seeing poverty and crises in the first half of his life. It may be possible to be the child of a divorced or bankrupt family. The person may have been born into an environment where he or she does not feel safe or comfortable enough. Money is a very important issue for this person because both crises and opportunities will come from here. It is very important for a person to create his own wealth and comfort on his own. The nature of the person may be very passionate and ambitious, of course, and he will not like superficiality, but it is very important for him to be aware of worldly pleasures and spend money for himself & his own comfort and pleasures. There is no need to fear or shy away from it. Balance is important. Apart from that, they must be careful to separate their money with their spouse. I do not recommend a shared piggy bank.