The first card is the Four of Wands, which represents stability and balance. This card indicates that there is a good chance that you will be successful in inviting this party. Your situation is quite stable and you have a good balance in your life. The card reminds you to approach all circumstances with balance and not to worry too much about the outcome.
The second card is the Nine of Pentacles, which represents wealth and abundance. This card indicates that the opportunity you are about to face is an excellent chance to build your wealth. It could also indicate that you should be ready to deal with whatever comes out of this encounter, both positive and negative. The advice is to make the most of it and be prepared for any eventuality.
In conclusion, based on the two cards drawn, it appears that the answer to your question is: Yes, this is a lucky opportunity for you. The stability of the Four of Wands suggests that there is good balance in your current situation, while the Nine of Pentacles indicates that there is abundance and it is an opportunity to build your wealth. You should approach the meeting with balance and be prepared for any eventuality.