In the absense of other forces, surface tension will make a collection of water into a sphere.
However if you add additional forces, such as gravity, they will likely dominate, except at the very small scale.
What in the hell is surface tension?
Surface tension is a property of all matter which tries to eliminate the surface, effectively reducing it in size as much as possible.
This results in an isolated object trying to adopt a spherical shape.
The one exception is the extremely rare case of negative surface tension which acts in the exact opposite way and tries to drive the matter to increase the size of the surface.
However as it isn't really just about surfaces, and instead is about interfaces, a better general word is interfacial tension.
This now recognises that you typically have something else in contact with the surface, and surface tension is typically referring to the interfacial tension of that substance with air, and that can be negative.
This explains why when you put a water droplet onto a hydrophobic surface, it beads up into little balls, and thus why some people treat surfaces to make them hydrophobic.
It also explains why on other surfaces, which are hydrophilic, the water appears to stick to it.
As for a full explanation, there is no point in giving it to you as it contradicts your fantasy so you would just reject it.