In my experience, a soul mate is definitely not your twin flame. A twin flame is not your soul mate even though both are the same on a different level. Why? Because, both are supposed to teach us life lesson's and karmic lessons, they are someone that we get and feel on a spiritual level, the connection is stronger than any physical relations that we have. The only difference, is that twin flames are on a deeper level. Soulmates can ideally consist of friendship, family, or even lovers. While on the other hand, twin flames are a true replica of the identical self, a reflection of our soul.
When we meet our soul mates, our meetings can be either brief or permanent. Either way, we must still master our karmic lessons when we meet them or have relations with them. These karmic lessons lead to the spiritual growth that is needed in order to find fulfillment in our lives to move on in order to find happiness and self love, Mastering these lessons helps us to erase the debts from our past lives in order to reach ascension, eternal bliss. The validation is that we need soulmates in order to connect with our twin flame!!
Twin flames which are deeper, are created from the same soul, and are separated into two when they are created. Basically, we are separated at birth and when we unite our soul becomes complete as one reuniting us in bliss. Based on many people's different experiences, most have either found their twin flame in this physical form but not all will find them in this lifetime. Some say when they have met their twin flames there is a yin/yang (Shakti) energy that is present. However, others have also claimed that the energies were so much that they had to separate from each other because the intensity was to much. One may have felt drained while the other was bursting with energy. When people have found their twin flame there is, supposedly, also a strong connection. A connection so strong, that one person could be constantly thinking of the other or look at their picture wondering about them.
My conclusion it is highly possible to connect with your twin flame in any lifetime and this why.........
First off, the idea that the soul splits in two and comes back does ring a bell but in the sense that we are split off from our Divine. Our soul is the omnipresence, it is the seed that is planted from the source, the Divine or our higher self. As we are a reflection of our Divine or higher self. When we meet others, they are also a reflection of us as we are the oneness within the Divinity. Secondly, spririt is different than soul as we need our Spirit as it is our energy for life. Without spirit our bodies are nothing but a stagnant object. The two are very different. The body is like an onion with 3 layers, you have the physical, the spiritual, and the soul. We have to cut layers in order o reach ascension as we let go of all attachments. Which furthermore proves that when you create an attachment to someone else besides yourself, you are not ascending but descending because you are creating more bonds and karmic contracts for your next life. Third, twin flames are about balancing the yin/yang, raising the Shakti energy or Kundalini Rising. It is mentioned in the ancient texts of Hindu and the Tibetan Book of the Dead, that when this happens you reach eternal bliss, happiness, and that you experience a higher state of tantra and love as you connect with your higher self or Source. Since spirit and soul are separate, then yes, that is when you connect with your twin flame as the 3 selves have to emerge to reach ascension in general.
So the theoretical probability is that yes, some people do expect to meet their twin flames by meeting that one person. However, results can and should only be based on experimental probability because those experiences are going to prove them valid. And, when you are forever looking on the outside, you miss what can happen from within.